This lecture provides an advanced introduction to MEMS (Micro-Electro-Mechanical Systems), covering topics such as MEMS design, packaging, prototyping, device categories, early MEMS examples, trends in devices, historical perspective, and market players. It explores the evolution of MEMS technology, its applications in smartphones, gaming devices, automotive industry, and smart systems integration. The lecture also discusses MEMS resonators, NEMS (Nano-Electro-Mechanical Systems), and the role of startups in driving innovation in the MEMS field.